Home / 137,309,478.76-205,961,029.98-69,133,865.32

Finding the Fourth Proportional to 137,309,478.76, 205,961,029.98 and 69,133,865.32

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Solution

The fourth proportional to 137,309,478.76, 205,961,029.98 and 69,133,865.32 is: 103,699,192.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,309,478.76 : 205,961,029.98 = 69,133,865.32 : x
  2. Step 2: Convert to fraction form
    137,309,478.76/205,961,029.98 = 69,133,865.32/x
  3. Step 3: Cross multiply
    137,309,478.76x = 205,961,029.98 × 69,133,865.32
  4. Step 4: Simplify right side
    137,309,478.76x = 14,238,882,107,805,800
  5. Step 5: Solve for x
    x = 14,238,882,107,805,800/137,309,478.76
  6. Step 6: Final answer
    x = 103,699,192.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.